In laundry soaps, a material called ‘filler’ is used. Which
of the following is a ‘filler?
1 Talc
2 Sodium silicate
3 Soda ash
4 Sodium phosphate
what are advantages & disadvantages of science?
The gases used in different types of welding would include 1 Oxygen and hydrogen 2 Oxygen, acetylene and argon 3 Oxygen and acetylene 4 None of these
WHY WE SMELL A SCENT AFTER RAIN?? BUT RAIN WATER IS PUREST FORM OF WATER WHICH IS ODOURLESS.
Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO
A mixture of iron filings and sand can be separated by 1 Heating 2 Sublimation 3 Hand picking 4 Magnetic separation
What are luminous irregular nebulae?
The combustible material at the tip of a safety match sitck is 1 Sulphur 2 Manganese dioxide 3 Phosphorus 4 Antimony sulphide
example for navigation satellite?
tea will coll most easily in a:
Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
neel armstrong belongs to which country ?
Rust is 1 A mixture of Fe2O3 and Fe(OH)3 2 A mixture of FeO & Fe(OH)2 3 Fe2O3 only 4 A mixture of Fe2O3.3H2O and Feo